Which is cost-effective for dry batteries and rechargeable batteries, which is durable for dry batteries and lithium batteries?

Lithium battery: The positive electrode plate is spheroidal carbon, and the negative electrode is a lithium ion compound. Currently, there are two types, lithium cobalt oxide and lithium iron phosphate. There are two kinds of structures, one is wound type, and the other is laminated type. It is a wound type, which is a layer of positive electrode sheet with a negative electrode sheet with an insulating permeable membrane in the middle, which is then rolled up and placed in a package or bag; the laminated type is a layer of positive electrode and a separator of the same shape. A layer of negative electrode and a separator are stacked in the package. The voltage of the lithium battery is generally 3.6V and 3.7V.

Dry battery: A chemical battery that uses a paste electrolyte to generate direct current (a wet battery is a chemical battery that uses a liquid electrolyte). It is roughly divided into a primary battery and a battery. It is commonly used in daily life and is light battery. They can be used on many electrical appliances.

There are many classifications for both regular and rechargeable batteries.

According to your point of view, the ordinary battery is a primary battery, cannot be charged, the common carbon battery, alkaline battery, and a lithium battery, the advantage is that the price is cheap (relative to the secondary battery, in fact, not much cheaper), The storage time is long, that is, the self-discharge is relatively low, and the weight is low for carrying. The disadvantage is that it is not rechargeable, and the cost of one use is high. Discarding generally pollutes the environment and is suitable for appliances that consume less power and use less current.

The rechargeable battery is also a secondary battery. Commonly, there are lead-acid batteries, nickel-cadmium batteries, nickel-hydrogen batteries, lithium-ion batteries, and lithium iron phosphate batteries. The disadvantage is that the price is higher, and the price of the matching charger is higher. Larger, self-discharge is higher (secondary lithium battery is relatively small, but it is still relatively large compared to disposable lithium battery). The advantage is that the average price is relatively good for multiple and the discharge current is large, which is suitable for appliances that are used frequently and consume a large amount of electricity.

To put it bluntly, it is two complementary. The disadvantage of a primary battery is the advantage of the secondary battery. The advantage of the primary battery is the disadvantage of the secondary battery. However, the common point is that the disposal will pollute the environment, but the degree is different.

At present, the household intelligent anti-theft fingerprint lock on the market can be said that more than 90% of the battery is powered by dry batteries. According to the manufacturer, 8 dry batteries are used for more than one year, and 4 dry batteries are used for 8 months. It is good for the home and is completely feasible! There are a lot of lithium batteries in the market as power sources! It's not new, it's been around for years, and it's not a mainstream. I think there are several reasons for this:

1, battery charging wiring is not suitable;

2, battery technology itself is not very good;

3. The battery itself has high cost;

4, often charging trouble;

5, no dry battery is convenient.

At this stage, it is a good thing to try to improve the power supply. The power supply problem is painful in many industries. If the technological innovation is broken, it will be a happy event to provide a more convenient and safe power solution! For the moment, I don’t think it is wise to use a lithium battery. How do you say this? The following I will give you the following analysis:

1, the security of the power supply itself: Samsung is a well-known brand, the flagship product explosion, comes down to the power problem, other brands have also had lithium battery problems, so it seems that the risk of using lithium batteries is still quite large, there are security risks !

2, Convenience: The lock factory does not have any fixed specifications and models in the selection of lithium batteries. There is no unified sense of industry integration. The ordinary No. 5 dry battery is full of streets. It is difficult to find a lithium battery with the same specifications.

3, high security risks: lithium batteries are to be charged, if the wiring is very unsightly, there may be leakage, the wiring is not plugged and charged, increasing the risk of using 220V electricity.

4, the quality of the product itself is worrying: Many manufacturers say that they can use half a year, the results are basically two or three months, the new technical materials have not been widely used for promotion, the actual use is much worse than the ideal.

5, the use cost is much higher than the ordinary dry battery: ordinary dry battery is calculated for 16 knots a year, also about 30 Yuan, 3 years is also 100 Yuan, and the current market of lithium batteries, large-capacity quality and reliable price is more than 100 Yuan, but the general use of 3 years does not change too much, the cost of post-configuration is relatively high.

6. The existing No. 5 battery: It is more humane to replace it once a year or so, and it is more acceptable. There is absolutely no need to be flashy.

Of course, I do not deny innovation. I just think that when the technology is not fully mature and controversial, we should abandon something more secure and take risks. The pace of research and development cannot stop, but cannot advocate! We must respect the profession and look forward to new material and technology breakthrough!

The Philips razor is good for charging.

The durability of the Philips rechargeable battery is similar to that of a mobile phone battery. As long as the battery is not a special one, it is basically unnecessary. After 3~4 years, it is estimated that your razor has been renewed. If it is more frugal, the battery can be used if it is broken. Because there are many models that support dual-use, plug in the power cord can be driven by AC, regardless of the battery.

The electric shaver consists of a stainless steel mesh cover, an inner blade, a miniature motor and housing. The net cover is a fixed outer blade with a plurality of perforations thereon, and the beard can be inserted into the hole.

The micro-motor is driven by electric energy to drive the inner blade to move, and the beard is inserted into the hole by cutting principle.

The electric shaver can be divided into rotary and reciprocating according to the action characteristics of the inner blade. The power source used is dry battery, battery and AC charging.

Philips, Braun, Panasonic, and Gillette are all good. If the beard is soft, the Gillette manual is preferred, the comfort is good, and the scraping is also clean; and the manual is also easy to meet the requirements of your stay. The big beard can choose 3 heads of Philips or Bolang, but also can choose Gillette Front 3 series, mainly scraping clean and comfortable. The general choice of Philips and Panasonic can be two. The above brands have been used in the shaving career for more than ten years. As for the battery charging, it depends on whether you are at home or on a business trip: home-selective charging type (the hotel often has no extra plugs, and often forgot to pull out). Business trip on the choice of dry battery, convenient, and the above brand with two section 5 'Nanfu' can support about a month. I think the two-head dry battery type Philips is the most cost-effective, the mall specials only for sale: 88 Yuan. Used people know!

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